$3\mathrm{.}1$ For the grapetiser processing plant, if a worker can produce $10$ litres$/$hour$,$ determine the number ofworkers needed on each shift. Suppose each shift has $100$ workers, what is the productivity of an individualworker? Lastly, if material costs are R$10/$litre$,$ capital costs are R$100,000$ and labor costs are R$10/$hour$,$ whatis the multifactor productivity of this processing plant?